# Opting out on JDK 27: a client that does not offer the hybrid group === client JDK 27 with -Djdk.tls.namedGroups=x25519,secp256r1 -> server JDK 27 client offered : "named groups": [x25519, secp256r1] server selected: x25519 handshake complete: TLSv1.3 TLS_AES_256_GCM_SHA384